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Step-by-step evolution of neo-sex chromosomes in geographical populations of wild silkmoths, Samia cynthia ssp
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SYSNO ASEP 0358556 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Step-by-step evolution of neo-sex chromosomes in geographical populations of wild silkmoths, Samia cynthia ssp Author(s) Yoshido, A. (JP)
Sahara, K. (JP)
Marec, František (BC-A) RID, ORCID
Matsuda, Y. (JP)Number of authors 4 Source Title Heredity - ISSN 0018-067X
Roč. 106, č. 4 (2011), s. 614-624Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords Lepidoptera ; sex chromosomes ; fluorescences Subject RIV EB - Genetics ; Molecular Biology R&D Projects IAA600960925 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z50070508 - ENTU-I, BC-A (2005-2011) UT WOS 000288703900014 DOI 10.1038/hdy.2010.94 Annotation Geographical subspecies of Samia cynthia (Lepidoptera: Saturniidae) differ considerably in sex chromosome constitution owing to sex chromosome fusions with autosomes (the so-called neo-chromosomes), which leads to variation in chromosome numbers. We cloned S. cynthia orthologues of 16 Bombyx mori genes, mapped them to chromosome spreads of S. cynthia subspecies by fluorescence in situ hybridization (FISH) to determine the origin of different parts of S. cynthia neo-sex chromosomes. Our results clearly showed a step-by-step evolution of the neo-sex chromosomes by repeated autosome-sex chromosome fusions. We suggest that the rearrangements of sex chromosomes may facilitate divergence of S. cynthia subspecies towards speciation. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
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